Home / 30,219.56-41,701.78-16,791.64

Finding the Fourth Proportional to 30,219.56, 41,701.78 and 16,791.64

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Solution

The fourth proportional to 30,219.56, 41,701.78 and 16,791.64 is: 23,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.56 : 41,701.78 = 16,791.64 : x
  2. Step 2: Convert to fraction form
    30,219.56/41,701.78 = 16,791.64/x
  3. Step 3: Cross multiply
    30,219.56x = 41,701.78 × 16,791.64
  4. Step 4: Simplify right side
    30,219.56x = 700,241,277.12
  5. Step 5: Solve for x
    x = 700,241,277.12/30,219.56
  6. Step 6: Final answer
    x = 23,171.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.